summaryrefslogtreecommitdiffstats
path: root/ansible_collections/community/general/plugins/modules/wakeonlan.py
blob: 6d7e09452745e53c5091270eae7ef12ecea56a6b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
#!/usr/bin/python
# -*- coding: utf-8 -*-

# Copyright (c) 2016, Dag Wieers <dag@wieers.com>
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later

from __future__ import absolute_import, division, print_function
__metaclass__ = type


DOCUMENTATION = r'''
---
module: wakeonlan
short_description: Send a magic Wake-on-LAN (WoL) broadcast packet
description:
  - The C(wakeonlan) module sends magic Wake-on-LAN (WoL) broadcast packets.
extends_documentation_fragment:
  - community.general.attributes
attributes:
  check_mode:
    support: full
  diff_mode:
    support: none
options:
  mac:
    description:
    - MAC address to send Wake-on-LAN broadcast packet for.
    required: true
    type: str
  broadcast:
    description:
    - Network broadcast address to use for broadcasting magic Wake-on-LAN packet.
    default: 255.255.255.255
    type: str
  port:
    description:
    - UDP port to use for magic Wake-on-LAN packet.
    default: 7
    type: int
todo:
  - Add arping support to check whether the system is up (before and after)
  - Enable check-mode support (when we have arping support)
  - Does not have SecureOn password support
notes:
  - This module sends a magic packet, without knowing whether it worked
  - Only works if the target system was properly configured for Wake-on-LAN (in the BIOS and/or the OS)
  - Some BIOSes have a different (configurable) Wake-on-LAN boot order (i.e. PXE first).
seealso:
- module: community.windows.win_wakeonlan
author:
- Dag Wieers (@dagwieers)
'''

EXAMPLES = r'''
- name: Send a magic Wake-on-LAN packet to 00:00:5E:00:53:66
  community.general.wakeonlan:
    mac: '00:00:5E:00:53:66'
    broadcast: 192.0.2.23
  delegate_to: localhost

- community.general.wakeonlan:
    mac: 00:00:5E:00:53:66
    port: 9
  delegate_to: localhost
'''

RETURN = r'''
# Default return values
'''
import socket
import struct
import traceback

from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.common.text.converters import to_native


def wakeonlan(module, mac, broadcast, port):
    """ Send a magic Wake-on-LAN packet. """

    mac_orig = mac

    # Remove possible separator from MAC address
    if len(mac) == 12 + 5:
        mac = mac.replace(mac[2], '')

    # If we don't end up with 12 hexadecimal characters, fail
    if len(mac) != 12:
        module.fail_json(msg="Incorrect MAC address length: %s" % mac_orig)

    # Test if it converts to an integer, otherwise fail
    try:
        int(mac, 16)
    except ValueError:
        module.fail_json(msg="Incorrect MAC address format: %s" % mac_orig)

    # Create payload for magic packet
    data = b''
    padding = ''.join(['FFFFFFFFFFFF', mac * 20])
    for i in range(0, len(padding), 2):
        data = b''.join([data, struct.pack('B', int(padding[i: i + 2], 16))])

    # Broadcast payload to network
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)

    if not module.check_mode:

        try:
            sock.sendto(data, (broadcast, port))
        except socket.error as e:
            sock.close()
            module.fail_json(msg=to_native(e), exception=traceback.format_exc())

    sock.close()


def main():
    module = AnsibleModule(
        argument_spec=dict(
            mac=dict(type='str', required=True),
            broadcast=dict(type='str', default='255.255.255.255'),
            port=dict(type='int', default=7),
        ),
        supports_check_mode=True,
    )

    mac = module.params['mac']
    broadcast = module.params['broadcast']
    port = module.params['port']

    wakeonlan(module, mac, broadcast, port)

    module.exit_json(changed=True)


if __name__ == '__main__':
    main()